Home / 7,620.26-11,430.28-2,074.12

Finding the Fourth Proportional to 7,620.26, 11,430.28 and 2,074.12

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Solution

The fourth proportional to 7,620.26, 11,430.28 and 2,074.12 is: 3,111.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,620.26 : 11,430.28 = 2,074.12 : x
  2. Step 2: Convert to fraction form
    7,620.26/11,430.28 = 2,074.12/x
  3. Step 3: Cross multiply
    7,620.26x = 11,430.28 × 2,074.12
  4. Step 4: Simplify right side
    7,620.26x = 23,707,772.35
  5. Step 5: Solve for x
    x = 23,707,772.35/7,620.26
  6. Step 6: Final answer
    x = 3,111.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.